Bluetooth keeps disconnecting in car

[sarah1973]

Since the last software update. My phone s22 ultra constantly keeps connecting to my car and then disconnecting. I have managed to get a video, it looks like someone is constantly pressing the Bluetooth button on and off, all day long. I have called Samsung, I've done a factory reset, still got the issue. Samsung say, to clear cache on Bluetooth, but its all greyed out and unable too. Any advice before I throw it out the window. I have tried s21 and note 10+ in car, both work fine. S22 ultra all ok, till last update. 

[sarah1973]

I used to carry another phone with me

[shrodge]

I have a Forester and had Subaru upgrade the head unit, and replace it when that didn't work.  It would still disconnect when I would be on a phone call and then could not automatically reconnect.  I never really had any issues with the connection for audio only, just when I would have a phone call.  Finally I discovered a hidden option...  Bluetooth AVRCP version.  By default it is set to 1.5 but 1.6 is preferable.  You can change this by doing the following:

Open Settings and scroll to the bottom to select About Phone

Scroll down and choose Software information

Tap Build number seven times (you may be prompted to enter your PIN, pattern, or password)

Go back to Settings and you should now see Developer Options at the bottom

Select Developer Options - scroll about halfway down the menu, you will see Bluetooth AVRCP Version

Set it to AVRCP 1.6

Hopefully this helps if you are still having an issue, or anyone so they don't have to go through this struggle lol